Drospirenone

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Drospirenone is indicated for oral contraception.

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Renal impairment Adrenal insufficiency Presence or history of progestin sensitive cancers Liver tumors, benign or malignant, or hepatic impairment Undiagnosed abnormal uterine bleeding

Drospirenone is a Progestin-only pill which is a synthetic form of progesterone. The hormonal component of Drospi inhibit ovulation by Suppressing gonadotropin release, Secondary mechanisms, which may contribute to the effectiveness of Drospi as a contraceptive, include changes in the cervical mucus (which increase the difficulty of sperm penetration) and changes in the endometrium (which reduce the likelihood of implantation). Drospirenone has antimineralocorticoid activity, counteracting oestrogen related sodium retention. Drospirenone exerts antiandrogenic activity.

Drugs or herbal products that induce certain enzymes (for example, CYP3A4) may decrease the effectiveness of Drospirenone or increase breakthrough bleeding. Counsel patients to use a back-up or alternative method of contraception when enzyme inducers are used with Drospirenone.

The following clinically significant Side Effects are described elsewhere in other sections of the labeling: Hyperkalemia Bleeding Irregularities and Amenorrhea Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Before you take Drospirenone, do not take this medicine and tell your doctor if you are already taking the following medicines: efavirenz, phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, rifabutin, rufinamide, aprepitant, products containing St. John's wort. Take special care while taking Drospirenone Hyperkalemia Thromboembolic Disorders, Bone Loss, Liver Disease Ectopic Pregnancy, Risk of Hyperglycemia in Patients with Diabetes, Bleeding Irregularities, and Amenorrhea, Depression.